/Engine/Source/Runtime/Datasmith/DatasmithCore/Public/IDatasmithSceneElements.h
IDatasmithMeshElementdefines an actual geometry. It won't add any instance to your scene, you'll needIDatasmithMeshActorElementfor this. Notice that several IDatasmithMeshActorElements could use the this geometry.
class IDatasmithMeshElement : public [IDatasmithElement](API\Runtime\DatasmithCore\IDatasmithElement)